I Pulled My Data From the Cloud: Do I Regret It?
Did I regret moving my data on-premise and breaking free from cloud dependency? I'll share the technical and operational reasons behind this decision from my.
109 posts found.
Did I regret moving my data on-premise and breaking free from cloud dependency? I'll share the technical and operational reasons behind this decision from my.
I explain why Kubernetes isn't the only solution for every project, highlighting the advantages of simplicity and cost-effectiveness based on my 20 years of.
I've shared my experiences on how to harden a new VPS with essential security steps in the first 45 minutes. SSH, firewall, and user management.
With 20 years of system architecture experience, I examine whether managing your own servers is a pleasure or an inevitable need.
I'm sharing the unique value that managing my own servers has added to my tech career, even in the cloud era, and 5 essential skills.
Being on-call for distributed systems can be stressful due to unexpected incidents and constant alerts. Here are 5 practical tactics to reduce that stress.
Local build cache or remote cache in your CI/CD pipelines? I dive deep into the balance of speed, cost, and efficiency.
I analyze blue-green, canary, and rolling update deploy strategies in terms of cost, risk, and resource consumption with a pragmatic approach.
Optimize build cache management in your CI/CD pipelines to save time and reduce infrastructure costs. A detailed guide.
The operational burden, performance losses, and correct log level strategy created in production by haphazardly added logs during software development...
Are Zero Downtime Deployment (ZDD) strategies truly necessary for small and medium-sized projects? In this post, I'll discuss the costs and trade-offs from my.
A bold analysis of the costs, risks, and missed opportunities behind the move to cloud, based on 20 years of system architecture experience.
In my twenty-year career, I've personally experienced how neglected monitoring leads to unexpected costs for systems and businesses. This post explores how.
The collapse stories of high‑traffic systems usually stem from small overlooked details rather than major architectural mistakes.
Why does Grafana's built-in alerting system fall short? A deep dive into Alertmanager installation, its advantages, and the ideal system architecture.
Striking the right balance between monitoring and alerting in system and application operations has always been challenging. In this post, I'll explain my.
I examine the strategic choices made when balancing speed and security in CI/CD pipelines, and their real-world impacts.
I share my experiences with the operational challenges and costs encountered when migrating from a monolithic application to a modular structure.
My experiences with the operational challenges I faced while shortening software build times and the trade-offs of different build cache strategies…
Based on my experience, I analyze the costs, efficiencies, and operational burdens of CI/CD deploy strategies in detail.
I compare monorepo and polyrepo approaches for dependency management in software projects, drawing from my own experiences. Advantages, disadvantages, and.
Regularly rotating secrets in systems is a critical security step. Drawing from my own experiences, I'll discuss secret rotation strategies and practical...
I explain how I set up CI/CD processes in my side projects using pragmatic approaches and the challenges I encountered during these processes.
Drawing on years of experience, this post explores whether to simply patch or strengthen a system with layered defense when a Kernel CVE emerges…
I'm delving into 3 different load balancing strategies I've used to ensure high availability in my own side projects or small-scale applications.
I delve into the operational burden and cost of JWT lifecycle management, examining overlooked strategic points and practical solutions.
This post provides a technical deep dive into Blue/Green and Canary seamless deployment strategies, examining their trade-offs and real-world applications.
Managing software dependencies carries a continuous burden and security risk in today's software world. In this post, I explore the technical and financial.
I analyze the operational overhead of secret key rotation and the cost-effectiveness of automation. Real-world scenarios and trade-offs.
Comparing the impact of Monolith and Microservices architectures on CI/CD processes, with practical experience. Deciding when to choose which.
Does using self-hosted runners in CI/CD processes truly save money? I compared hidden costs, hardware resources, and operational overhead.
Improve developer quality of life by speeding up slow CI/CD processes. We examine 3 practical and concrete methods for build cache optimization.
Based on my hands-on field experience, I compare GitOps and push-based CI/CD approaches. Which one should we choose for different scenarios?
Learn modern secret rotation practices to keep your systems secure. In this guide, we will walk through the process step-by-step.
How do you control the tool usage of AI agents? Secure agent architecture with schema hardening, isolation, and RBAC.
A guide from my personal experiences on team stress, technical debt, and trade-offs encountered when choosing deploy strategies.
I examine the advantages and disadvantages of running your GitHub Actions runners on your own servers, focusing on cost, performance, and control.
A deep dive into the risks, costs, and practical applications of Blue/Green and Rolling deployment strategies in software delivery.
My guide to pruning dead projects that have been accumulating for years, consuming RAM on servers, and generating domain renewal bills.
Mustafa Erbay details the technical aspects and strategies for achieving zero-downtime deployments using Nginx for Dockerized applications on a VPS.
I explain step-by-step how to write robust health checks (HEALTHCHECK) for situations where Docker containers appear 'up' but the application isn't actually.
I'm sharing how a cleanup script I wrote on my GitHub Actions runner crashed my system, and the lessons I learned from this painful experience.
I explain the unexpected effects of Cloudflare cache bypass rules and how I overcame them with Nginx to improve performance. My experiences on my own VPS.
Discover why environment variable management is so critical, the common nightmares, and effective strategies to win these hidden wars. From application...
Environment Variables play a vital role in application configuration. But mismanaging them can leak hidden secrets and…
A deep look at how load balancer (Load Balancer) misconfigurations affect system performance and the issues that cause traffic to get misrouted.
Dig deep into the unexpected effects of Sentinel-based firewalls in production and these 'hidden wars.' Strategies and solutions.
Learn the principles of Immutable Infrastructure in the cloud and find out how it can boost your operational efficiency. Step by…
A deep look at the long-term effects of database choices in system architecture and the scalability traps they create. The cost of bad decisions and…
Explore the challenges of state management in cloud environments and the battles fought in this space, told from an SRE's perspective.
The critical security and operational risks that expiring certificates cause in production environments, why they slip through the cracks, and effective…
While Spot Instances offer cost savings in cloud computing, in production environments they can create hidden cost traps with unexpected interruptions. In…
Learn about the unexpected challenges of auto-scaling and how, as a capacity engineer, you can avoid these traps.
Discover why database migrations sometimes turn into decisions you can't undo, and what that means for your career. Detailed planning, risk…
Read Mustafa Erbay's take on the crises caused by ephemeral storage in the container world and how these instant memory wars affect your career…
Discover the 'ghost bugs' caused by time sync differences in distributed systems. How they appear, how to diagnose…
Learn about the hidden resource-exhaustion war containers fight, and how to manage this deadly dance. Performance optimization and stability included…
Overlooked details in Kubernetes Network Policies can spark unexpected crises in production. In this article we'll dig into common pitfalls and…
A comprehensive guide to fighting Kubernetes Network Policy errors. Understand common pitfalls and save your night with practical solutions.
Explore the challenges, best practices, and solutions around managing ConfigMaps and Secrets in Kubernetes. Learn how to head off the operational nightmares.
Learn the 'Pet' and 'Cattle' models in cloud architecture, the scaling challenges, and modern approaches with Mustafa Erbay's perspective.
Discover that SRE is not just about technology, but also about human health and team well-being. A roadmap for moving from pager fatigue to a proactive…
An in-depth look at how overlooked load balancer configuration errors can wreck system stability and devastate engineering teams.
A real outage story driven by unscalable cloud architecture, and the lessons we can take away from it.
An in-depth look at the nature of intermittent errors in distributed systems, the stress they place on teams, and strategies for dealing with these 'ghosts'...
Why concurrent deployments matter on cloud-native platforms, and the role stress testing plays in keeping them from becoming incidents.
Learn how to secure network traffic between pods using Kubernetes Network Policies. A from-A-to-Z guide with detailed examples for Network…
Take a deep look at Terraform plan's surprise resource deletions and the strategies for protecting your automation pipelines from these kinds of failures.
Explore the Deployment Blackhole problems frequently encountered during canary deployments on cloud-native infrastructure, along with proposed remedies.
Discover the power of Network Policies for securing pod-to-pod networking in Kubernetes. Effective answers to invisible threats.
Balancing safety and speed in IaC: a guide to managing prod changes through plan/apply separation, drift detection, policy-as-code, and approval flows.
Roll out security guardrails in production clusters gradually with Pod Security Admission (PSA) and Kyverno: an audit→warn→enforce plan.
A practical SOPS + age setup and operational discipline for keeping encrypted secrets in Git and decrypting them safely inside CI/CD and the cluster.
A practical way to manage server services with systemd and Podman Quadlet, free from the Docker daemon dependency.
A Headscale-based management network overlay guide for providing controlled access to scattered servers and management endpoints.
A practical Nuclei approach for scanning internal network services with low noise and tying validated findings to your operations workflow.
A practical guide to admitting container images not just by a CVE list, but by component inventory and policy threshold.
An architectural approach that bounds cloud cost from the start with policy, tagging, and lifecycle rules instead of reporting on it after the fact.
A practical and enterprise-friendly setup guide for signing container images with Cosign and verifying them in the delivery pipeline.
A practical guide to splitting OpenTofu state in order to preserve tenant, environment, and ownership boundaries in enterprise infrastructure.
An ERP approach that manages database schema changes through a reversible and observable migration pipeline, without amplifying outage risk.
A secure authorization pipeline you can build with the Envoy ext_authz filter to separate identity, policy, and decision logging on internal service traffic.
A cost-focused retention guide for designing hot, warm, and archive log tiers on Loki.
A Chrony-based guide to making clock drift visible across distributed Linux servers and reducing operational risk.
An HAProxy approach to catching internal service failures from real request flow without adding active probe traffic.
A practical guide to state management, module design, drift control, and a safe promotion flow when building IaC with Terraform.
A practical Vector-based setup approach for collecting and routing application, syslog, and infrastructure logs through a single stream.
A guide to designing the CI/CD pipeline as build-test-gate-deploy for fast feedback, safe releases, and low-risk deploys.
A practical guide that addresses service boundaries, traffic management, SLOs, and platform responsibilities together when designing microservices on…
An architectural framework for the golden path approach so platform teams can deliver speed and standardization together.
A guide to Ansible-based drift auditing for measuring and reporting deviations from the expected state on Linux servers.
A guide for setting up a safe promotion model on a GitOps pipeline without leaving container versions to uncontrolled automation.
A guide to moving Kubernetes network policy from observability into enforced control without breaking production.
A field guide to Git/GitHub practices — branch strategy, PR review discipline, clean commit history, and release flow.
A practical guide to gating infrastructure changes through policy by inspecting Terraform plan output with OPA.
A practical Vector-based setup for filtering, enriching, and routing scattered log streams to multiple destinations.
A guide to designing, at enterprise scale, a self-service platform approach that takes infrastructure teams out of the bottleneck role.
From image supply chain to runtime hardening, a practical checklist and runbook for running Docker containers safely in production.
A practical, GitOps-based guide for building a controlled promotion flow across development, test, and production environments.
A guide based on External Secrets for pulling secret data from a central vault and applying rotation in Kubernetes environments.
A guide for building an Alertmanager routing model that reduces misdirected alerts and accelerates incident response.
A Traefik-based guide for safely publishing internal services and automating the certificate lifecycle.
A guide to designing short-lived machine identities for servers, services, and automation users instead of static secrets.
An approach for moving server configuration out of manual labour and into a safe, repeatable automation flow.
An OpenTelemetry-based observability architecture that brings metric, log and trace data into a single standard.
With 20 years of system architecture experience, I discuss why Kubernetes is not the right solution for everyone, focusing on cost and complexity.
I delve into secret rotation strategies, the impact of automation on security, and practical approaches.
In my twenty-year journey in system administration, I learned much more than just technical knowledge. The most important lessons came from my mistakes, my.
I've worked with countless open-source projects in my career. But how sustainable is this 'free' world really? I discuss this topic with my experiences.